2024 Vol. 39, No. 5

Display Method:
Research
Experimental Study on Overall Buckling Behavior of Q690 High Strength Steel Cold-Formed Square Tube Columns Under Axial Compression
Keyang Ning, Meng Xiao, Kwok-Fai Chung
2024, 39(5): 1-7. doi: 10.3724/j.gjgS24050101
Abstract:
One of the strategies for decarbonizing the construction industry is to enhance the efficiency of engineering design in order to minimize the demand for building materials. Recent advancements in the production of high-strength steel have enabled thi...
Anti-Slip Experimental Research on Aluminum-Based Metalized Faying Surfaces of Q690 High Strength Steel with Different Bolt Hole Types
Zhenming Chen, Ka Bian, Fei Gao, Junbo Chen, Meng Xiao
2024, 39(5): 8-16. doi: 10.13206/j.gjgS24050102
Abstract:
The application of high strength steels (HSS) in building structures can effectively reduce the consumption of structural steel and erection cost, lower the carbon footprints of building structures, and promote the high-quality development of the con...
Mechanical Properties of Thick Plates After Welding of Q690 High Strength Steel
Hao Jin, Mengfei Zhu, Kwok-Fai Chung, Yanhua Wang, Hailong Liu
2024, 39(5): 17-26. doi: 10.13206/j.gjgS24050103
Abstract:
A comprehensive investigation into the mechanical properties of 50 and 70 mm thick plates of Q690 high strength steel and their butt-welded sections under tension was presented in this paper, and a total of 40 tensile tests were conducted. Firstly, a...
Fatigue Performance Study on Q690 High Strength Steels and Their Welded Sections
Wei Chen, Kwok-Fai Chung
2024, 39(5): 27-33. doi: 10.13206/j.gjgS24050104
Abstract:
High strength steel with nominal yield strength, fy, no smaller than 460 MPa has been progressively applied in buildings and bridges due to its good material properties. Compared with normal strength steel, high strength steels have higher yield stre...
Tensile Properties of Q690-QT High Strength Steel Welded Sections with Different Heat Input Energy During Welding
Bin Li, Xiao Liu, Kwok-Fai Chung
2024, 39(5): 34-40. doi: 10.13206/j.gjgS24050105
Abstract:
High strength steel with yield strengths at 690 MPa has been widely used in primary structural members of steel structures because of their strength-to-self-weight ratios. Over the past two decades, there were a number of experimental investigations ...
Experimental Investigation of Axial Compression Behaviour of Stub Circular Concrete-Filled Steel Tubes with Q690 High-Strength Steel
Pengfei Men, Ho-Cheung Ho, Kwok-Fai Chung
2024, 39(5): 41-48. doi: 10.13206/j.gjgS24050106
Abstract:
Circular concrete-filled steel tubes (CFSTs) can fully utilize the composite action of the steel tube and infilled-concrete, and thus its load-bearing capacity and ductility can be significantly enhanced. Therefore, they are widely used in engineerin...
Experimental Investigation into the Axial Compression of Welded Stocky Columns of Q690 and Q960 High Strength Steel
Mengfei Zhu, Ho-Cheung Ho, Hao Jin, Kwok-Fai Chung
2024, 39(5): 49-56. doi: 10.13206/j.gjgS24050107
Abstract:
With the development of metallurgical technology, high-strength steel and ultra-high-strength steel with yield strengths of 460 MPa and above have been industrially produced in China, with production increasing year by year. These steels use heat tre...
Ductile Fracture Behaviour of Q690 High Strength Steel Under Monotonic Tensile Actions
Mengfei Li, Ho-Cheng Ho, Kwok-Fai Chung
2024, 39(5): 57-63. doi: 10.13206/j.gjgS24050108
Abstract:
The increasing utilization of high-strength Q690 steel in engineering structures is attributed to its superior strength-to-weight ratio. Understanding the ductile tensile fracture behavior of Q690 steel is crucial for investigating bolted connections...
Design Discussion
Three Types of Flexural-Torsional Buckling of Beams in Industrial Buildings
Genshu Tong
2024, 39(5): 64-66. doi: 10.13206/j.gjg23092020
Abstract:
Three types of flexural-torsional buckling of beams in industrial buildings are introduced, they are girders supporting main beams, beams with purlins on their top flange and beams with fly braces between the lower flange of the steel beam and the pu...